The potential at any point due to a magnetic shell is the product of its strength into the solid angle w subtended by its edge at the given point, or V = Fu.
A fund bearing this name was formed in the 18th century for the purpose The sous of converting to the Catholic faith the native Indians of fu d of Upper and Lower California, both of which then belonged to Mexico, and of maintaining a Catholic priesthood there.
The form in which certain of the references to him are couched favours the above view; the compiler of Guiron le Cortois says in his prologue that "maistre Gautier Map qui fu clers au roi Henrydevisa cil l'estoire de monseigneur Lancelot du Lac, que d'autre chose ne parla it mie gramment en son livre"; and in another place he refers to Map, "qui fit lou pro pre livre de monsoingnour Lancelot dou Lac."
They showed a zeal for evangelization which resulted in the establishment of their influence throughout Asia, as is seen from the bishoprics founded not only in Syria, Armenia, Arabia and Persia, but at Halavan in Media, Mer y in Khorasan, Herat, Tashkent, Samarkand, Baluk, Kashgar, and even at Kambaluk (Pekin) and Singan fu Hsi`en fu in China, and Kaljana and Kranganore in India.
Over the whole of its southern portion tea is largely grown, notably in the districts of Hui-chow Fu, Tung-liu, Ta-tung and Wu-hu.